Demography

Demography

______________ is defined as the science of population and the empirical, statistical, and mathematical study of human population (Boaue).

Etymology

The term Demography is derived from the Greek words demos meaning "people" and ypagly meaning to "draw" or "write".

health problems

Demography aids health workers and program planners to identify and characterize __________ besetting a community

predict

Knowledge of population growth and dispersal in the past helps health workers __________ future developments

population in space

The three main foci of Demography are: 1) Changes in population size (which include Natality, Mortality, and Migration); 2) Population composition/structure; and 3) Distribution of _____________.

education

Population composition is defined by characteristics such as age, sex, marital status, occupation, and _____________.

Census

A __________ refers to the total process of collecting, compiling, and publishing demographic, economic, and social data pertaining to all persons in a country at a specified time

10

Most nations of the world conduct a national population census once every __________ years.

military

The importance of a census is that it provides nations with a statistical profile of their people which is a basis for planning social, economic, and _____________ services

Sample Surveys

_____________ collect information from only a subset of the population.

Registration System

A _____________ deals with the continuous recording of vital events like birth, deaths, still-births, marriages, divorces, adoptions, and annulments as they occur.

school enrolment

Besides Censuses and Sample Surveys, other record systems that can be used for describing a specific population include voter’s registration, income tax return, and _____________.

count

A __________ refers to the absolute number of a population in a specified area during a specified time period.

ratio

A __________ is a single number that represents the relative size of two numbers (a/b (K)).

proportion

A __________ is a type of ratio where the numerator is part of the denominator (a/a+b (K)). If K equals 100, the result is a percentage.

rate

A __________ measures the amount of change and represents the occurrence of events over a given interval of time.

100,000

It is customary to use rates per __________ population for deaths and rates per 1,000 population for live births.

Sex ratio

The __________ compares the number of males to females in a population, calculated as (# males / # females) x 100.

Sex structure

__________ refers to the sex ratios calculated for each age group.

Median Age

The __________ is the middlemost age of a population.

Dependency ratio

The __________ (D.R.) provides an index of age-induced economic drain on manpower resources, comparing dependents (0-14 y.o. and >65 y.o.) to the economically productive age group.

population pyramid

The age and sex composition of a population can be presented graphically as a __________

Intercensal

_____________ estimates are made on any date intermediate to two censuses, taking both results into account.

Post-censal

_____________ estimates are made on any date in the past or during a current date following a census.

Projections

__________ are estimates made on any date following the last census for which no current reports are available.

bt

The formula used in the Arithmetic Method of Population Projection is Pt = Po + __________

Crude Birth Rate (CBR)

The __________ measures how fast people are added to the population through birth, calculated using the number of registered live births over the mid-year population.

women 15–44 y.o.

The GFR is more specific than the CBR because it relates the number of registered live births in a year to the mid-year population of _____________.

Crude Death Rate (CDR)

The __________ is the rate at which mortality occurs in a population.

Specific Mortality Rate (SMR)

The __________ is the rate of dying in a specific population group, where the numerator and denominator refer to the same group.

1 yr

The IMR is the number of deaths of infants under __________ of age per 1000 live births in a calendar year.

Neonatal

_____________ mortality rate is related to deaths of infants less than 28 days of age and is often due to prenatal factors.

Post Neonatal

_____________ mortality rate is related to deaths of infants older than 28 days but less than 1 year of age and is often due to environmental factors or infection.

puerperium

The MMR measures the number of deaths due to diseases directly related to pregnancy, delivery, and __________.

Case Fatality Rate (CFR)

The __________ measures the proportion of cases which end up fatally. A high CFR indicates a more fatal disease.

duration

Unlike many annual rates, the time element for the CFR is not annual, but rather the usual __________ of the particular disease.

illness

Morbidity rate measures the occurrence of __________ in a community.

incidence rate

_____________ measures the development of new cases of disease in a group exposed to the risk in a period of time.

Prevalence Rate

_____________ measures the proportion of existing cases of disease in a population, including both old and new cases.

chronic

Prevalence rates are more useful in describing _____________ conditions and quantifying the burden of disease at a given point in time.

Point Prevalence

_____________ measures the frequency of existing disease in a defined population at a single point in time.